Comtech EF Data MetaCarrier MCDD-100, Installation And Operation Manual

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MCDD-100 MetaCarrier Detection Device Revision 3
Rear Panel Connectors and Pinouts MN-MCDD100
3–5
3.3 Rx (IN) IF Connections
THERE MAY BE DC VOLTAGES PRESENT ON THE TYPE ‘N’ RX IF CONNECTORS, UP
TO A MAXIMUM OF 48 VOLTS.
Rx (IN) | L-BAND Connector Notes:
1. Return loss on the L-Band port is typically better than 14 dB.
2. If connection to an L-Band 75 Ω system is required, a Type ‘N’ to Type ‘F’ adapter can be
used and is available from Comtech EF Data as an optional accessory. While a reduction in
return loss will occur when adapting from 50 Ω to 75Ω operation , the effect in most systems
will be imperceptible.
3.4 Utility Connections
3.4.1 CONSOLE Interface Connector, DB-9M
The CONSOLE interface is a 9-pin Type ‘D’ male connector. It is intended for
connection to an M&C computer or terminal device, and is used for EIA-232
communications. The settings for this serial interface are fixed at 38400 baud,
8 data bits, no parity, and 1 stop bit(8-N-1). See Table 3-2 for pinouts.
Table 3-2. CONSOLE Connector Pinouts
Pin # Description Direction
1 Ground –
2 EIA-232 Transmit Data Out
3 EIA-232 Receive Data In
4 Reserved - do not connect to this pin –
5 Ground –
6 Reserved - do not connect to this pin –
7 Reserved - do not connect to this pin –
8 Reserved - do not connect to this pin –
9 Reserved - do not connect to this pin –
Rx Connector Name Connector Type Description Direction
Rx (IN) | 70-140MHz BNC 50Ω/75Ω Female Rx IF Signal, 70/140
MHz
Input
Rx (IN) | L-BAND Type ‘N’ 50Ω Female Rx IF Signal, L-Band